Tape for controlling electrical apparatus



w. 1.. DUCKER 1 ,885,808 TAPE FOR CONTROLLING ELECTRICAL APPARATUS Nov. 1, 19.32.

Filed June 3, 1950 UNE VTILLIAM L. DUCKER, 0F NORMAN, GKLAHOMA TAPE FOR CONTROLLING ELECTRICAL APPARATUS Application filed June 3, 1930. Serial No. 459,091.

My invention relates to tape for controlling the making and breaking of contact in electrically operated apparatus.

One obj ect of my invention is to provide a tape which will efficiently operate upon a tape winding device of which I am the inventor and upon which application for a United States patent was filed by me April 18th,1930, under Serial Number l 5,466.

In order to obtain ideal results with the de vice above referred to,

it is imperative that one side of the tape be smooth and slick. It is also imperative that the tape be comparatively strong. This is because of the fact that there is necessarily a certain amount of slippage between the convolutions in the roll of the tape upon the a maximum amount of by a given sized device, it is tape be as thin as possible a detrimental amount of its device. In order that tape may be handled necessary that the without sacrificing tensile strength.

The above mentioned device is primarily designed for use in connection with electr1cal devices covered by nited States Patent Numbers 1,394,565, and 1,572,212, issued in favor of John Long,

tober 25th, 1921, and

February respectively, on Oc- 9th, 1926, but

may be used in connection with any other electrical apparatus in which a is used in making and brcaklng contact.

perforated tape an electrical So far as this applicant knows or can as certain the Long devices have in practice been confined to signs voltage electrical ener y, due

C) no economical tape of operated on a low to the fact that suliicient insulating quality has been devised for use with the device.

This lack of a proper tape, together With the expense of manufacturing a large sign adapted to operate upon low voltage electric energy, has caused the confined exclusively to may be used 1n window Long devices to be small signs such as drsplays and the like.

By providing my above mentioned tape winding device,

with an ideal tape as described and claimed herein, and combining both of them with either control mechamsm of Long as above ment1oned, I make it possible to economically operate large outdoor signs on commercial vo ltage and other voltage higher than have heretofore been possible with the said Long devices.

Other objects of the invention are to provide a tape of this class and within this art which will be new, novel, practical and of utility; which will bear sufiicient insulation to the passage of electrical current to be practical in operating a sign on comparatively high voltage electrical current; which may be easily perforated mechanically which will be easily mended; and, which will be ellicicnt in accomplishing all the purposes for which it is intended.

lVith these and other objects in view as will more fully appear, my the construction, novel features, and combination of parts hereinafter more fully described, pointed out in the claims hereto appended, and illustrated in the accompanying one-sheet drawing, of which; r I

Figure 1 is'a perspective view of a frag ment of the tape, partially in section;

Fig. is a similar view showing a portion of the tape turned back and exposing therebeneath the layer of insulating material;

Fig. 3 is a vertical sectional view of a portion of an electrical control apparatus upon which my tape may be used; and,

Fig. l is a fragmentary perspective view 0 of the tape winding device upon which application for United States patent is now pending under Serial No. 445,446, and upon which the tape covered herein is intended to be used.

Like characters of reference designate like 8 parts. in all the figures.

It is understood that various changes in the form, proportion, size, shape, weight and other detailsof construction, within the scope of my invention may be resorted to without invention consists in long fibered paper. Upon one face of tape 1, I provide a layer 2 of insulation. Said layer 2 will preferably be composed of impure animal gelatin applied in a liquid or viscous state and permitted to dry. It will be noted in the embodiment shown in ig. 1 of the drawing that the tape is slightly curved in cross-section and that both of its side edges are slightly lower than it is at its center. This is done so that when the tape travels across a plane surface and is covered with mercury it will have a tendency to adhere closely at its edges to the plane surface over which it is traveling, thus preventing the mercury from flowing beneath the tapes edges and reaching a position between the plane surface and the tape. Another virtue in having the tape slightly curved transversely, is the ease with which it may be guided over a reel. The curve gives the tape a natural tendency for one of its convolutions to aline itself upon another.

It is obvious however that the tape may be made perfectly flat as shown in Fig. 2 without departing from the principle of my invention.

Obviously, the invention is susceptible of embodiment in forms other than that which is illustrated in the accompanying drawing and described herein, and applicable for uses and purposes other than as detailed, andl therefore consider as my own all such modifications and adaptations and other uses of the form of the device herein described as fairly fall Within the scope of my invention.

Having thus described my invention, what is claimed and desired to be secured by Letters Patent, is;

1. The combination with mechanism for making and breaking electrical circuits through the agency of a traveling perforated tape, of aperforated tape embodying a strip of a fibrous material faced with an insulating material.

2. The combination with mechanism for making and breaking electrical circuits through the agency of a traveling perforated tape, of a perforated tape embodying an endless strip of fibrous material faced with an insulating material.

3. The combination withmechanism for making and breaking electrical circuits through the agency of a traveling perforated tape, of a perforated tape embodying a strip of fibrous non-insulating material faced with an insulating material.

4. The combination with mechanism for making and breaking electrical circuits through the agency of a traveling perforated tape, of a perforated tape embodying a strip of fibrous non-insulating material having one ofits faces covered wth an insulating material.

5. The combination with mechanism for making and breaking electrical circuits of fibrous through the agency of a traveling perforated tape, of a perforated tape embodying a strip material faced with a smooth insulating material.

6. The combination with mechanism for making and breaking electrical circuits through the agency ofa traveling perforated tape, of a perforated tape embodying a strip of fibrous material, and a strip of insulating material, said insulating material attached firmly and evenly to the face of said strip of fibrous material.

7. The "combination with mechanism for making and breaking electrical circuits through the agency of atravelin g perforated tape, of a perforated tape embodying an endless strip of fibrous material, and an endless strip of an insulating material attached firmly and evenly to the face of said strip of fibrous material.

8. The combination with mechanism for making and breaking electrical circuits through the agency of a traveling perforated tape, of a perforated tape embodying a strip of fibrous material, and a strip of smooth surfaced insulating material, said insulating material attached firmly and evenly to the face of said strip of fibrous material.

9. The combination with mechanism for making and breaking electrical circuits through the agency of a traveling perforated tape, of a perforated tape embodying a strip of fibrous material faced with impure animal gelatin.

10. A tape for the purposes described embodying a'strip of fibrous material faced on one face with impure gelatin, said tape being arcuate in cross-section.

11. Organization as described in claim 10, in which the tape is slightly curved in cross section.

lVILLIAM L. DUCKER. 

